Improved rotary road-scraper



diritta tapes @anni 69Min.

Lette/rs Patent No. 88,686, lated April/SGIL IMPRovED ROTARYROAD-seRr-ERL The Schedule referred to in these Letters Patent andmaking part of the same.

To all whom 'it may come/m Be it known that I, J AcoB W. WILSON, ofSomerford, in the county of Madison, and State of Ohio, have inventednew and useful Improvements in Rotary Road-Scrapers and I do herebydeclare that the following is a full, clear, and exact description of myinvention, reference being had to the accompanying drawings, forming apart of this specification, and to the letters of reference markedthereon, of which drawings- Figure 1 is an elevation of my improvedscraper.

Figure 2 is a plan of the same.

Figure 3 is an elevation of the same when in position for levelling downearth.

Phe nature of my invention consists in the novel construction andarrangement of the mechanism used in combination with a road-scraper,for the purpose of operating the same, whereby I am enabled to regulatethe4 depth to which the scraper i s. tocnt into the earth to be scraped,to hold the scraper in a proper position for transporting the earthscraped up, to hold the scraper in a suitable position for levellingdown the earth after it is scraped to 'the desired position, and tolreadily revolve the scraper, so as to discharge its load, and get it inposition for anew one, or to perform any service that may be required ofthe scraper, with but very little muscular exertion, and in a veryeffectual manner, the whole machine being of simple construction, andmoderate cost, and not liable to get out of repair.

To' enable others skilled in the art to make and use my invention, Iwill proceed to describe itsconstructiou and operation.

The scraper A is of an ordinary form, and, as represented in drawing, ismade with bottom, D, with sharp front edge, sides C C, and rear-endpiece B, the several parts being arranged as shown, but an ordinarycast-iron scraper may be used, if' preferred.

lo the sides O O of the scraper' A are secured the standards E E, whichhave pivot-bolts in their ends which pass through holes in thetongue-pieces I I, which are secured ou them by means of the nuts e e,as shown.

The tongue-pieces I I are bent into the form shown, and are secured tothe tongue J by two or more bolts, aa, as shown, said tongue ,serving asa means of attaching the team to the machine.

The handlesF F are united at their rear ends by 'the cross-bar G, andare braced by braces ff inserted in the angles, between the cross-barand handles, as shown.

The front ends of these handles F F are pivotedby bolts c c to thetongue-pieces I I, at points near the inward bends in said irons, asshown.

These bolts'c c pass through holes in the pieces F F and I I, andthrough the washers b l), which are-placed between the tongue-pieces andhandles, as shown, to prevent any rubbing between them.

To these handles F F are secured the irons K K, by means of thescrews orbolts It lo, as shown.

These irons K K are of an L-shaped cross-section, and are so arranged onthe handles F as to leave a slot between the arm of' the L and the lowerface of the handle F, as seen in detached cross-section in fig. 3.

The bolts, or pins L L are secured in the sides O O of the scraper A insuch a manner as, that when the scraper is at work scraping ortransporting earth, their ends slide in the slots between the ironsK Kand han- 4dles F F, as seen in figs. 1 and 2.

The spikes, or pins H H are inserted in the upper edge of the rear pieceB of the scraper A and The pins M M are inserted in the lower facesofthe ,handles F F, as shown.

The operation of'my improved scraper is as follows:

The motive-power being secured to the tongue J, the handles F F arepressed down by the operator, who graspsthecrossrbar Q, and this presses,down on the pins L L, which depresses the rear part, and of courseelevates the sharp -front edge ofthe scraper A, so-that it can be drawnto the desired location for working.

When the scraper is to be loaded, the handles F F are raised by theoperator, which causes the front of the scraper to dip into the,earthfthrcugh the action `of the irons K K, on the pieces L L, in a.manner readily seen, and the dip of the scraper, while being loaded, iseasily regulated by raising or lowering the handles F F.

When the load is obtained, the handlesD F F are pressed down, as beforedescribed, and the load is then drawn to any desired place.'

When the scraper is to be unloaded, the operator raises the handles F Funtil the front o" the scraper A catches in the ground, and thus tiltsthe scraper up in the position shown in fig. 3.

The pins L L then strike against the pins M M, in the handles F F, andthus hold the scraper in the position shown in fig. 3, when it can beused to level oli' the earth, which it has thrown in a heap, as isreadily seen.

After this levelling oi is finished, the operator raises the handles F Funtil the pins L L slip under the pins M M, when the scraper A fallsforward, and the pins H H stick in the ground, when it is readily seenthat the forward movement of the team will cause the scraper to makeanother half revolution, and thus come back to its original position.

As soon as the operator hasraised the handles F F su-iieiently to letthe pins L L pass under the pins M M, he releases said handles, whichthen drop down on to he standards E E, as shown by dotted lines K F, ing. 3.

The pin L describes the arc of a circle, (represented by circular dottedlines in iig. 3,) during the revolution of the scraper A, so that whenthe scraper comes back into the position shown in g. l, said pins L Lcome back to their original positions in the slots, between the handlesF F and irons K K, when it is readily seen that the scraper can again beoperated, as .before shown. A

It is readily seen that Where there is no occasion for the scraperacting as a leveller for its ownload, the operator, when desiring tounload the scraper, will first raisethe handles F F, until the scraperis tilted up, then,'as soon as the pins L L pass out from the .irons KK, he will raise the handles F F enough to allow the pins L L to passunder the pins MM, when the scraper A will turn over at once, as isreadily seen.

Having thus fully described my invention,

What I claim las new. and desire to secure by Letters Patent, is

1. The peculiar arrangement and combination of the scraper A, standardsE E, tongue-pieces I I, and handles F F, the several parts beingarranged substantially in the manner and for the purpose-specified.

2. The L-shaped ironsKK, when used in combination with the handles F Fand the pins L L, on the scraper A, substantially as and for the purposespecified.

3. The pins M M, when usedin combination with the handles F F, pivotedto the tongue-piecesI I, and

eases pins L L, and the scraper A, substantially as and for the purposeherein specified.

4. rIhe peculiar arrangement and combination of the scraper A withstandards E E and pins L L, the tonguepieces I I and handlesF F, withpins M M, and l -shaped irons K K, the several parts being arrangedsubstantiallyin the manner and for the purpose herein specied.

-5. The rotary road-scraper, herein described, conlposed essentially ofthe scraper A, with standards E E, pins L L, and spikes H I-I, screwedthereto; the tongue-pieces I I, with tongue J, the pivot-bolts c c, withseparating washers b b; handles F F, with pins M M, andl L-shaped ironsK K, and cross-bar G, with braces ff, the several parts beingconstructed and arranged substantially in the manner and for thepurposes herein specified.

As evidence that I claim the foregoing, I have hereunto set my hand, inthe presence of two Witnesses, this 23d day of November, A. D. 1868.

JACOB W. WILSON.

Witnesses:

WM. MHJLAY, B. BLAKE.

